PROGRESUL
Product Overview
Bară rotundă din aluminiu 6061 is a precipitation-hardened aluminum-magnesium-silicon (Al-Mg-Si) alloy rod, one of the most versatile and widely machined aluminum products in the industry. It combines medium-to-high strength, excellent machinability, good weldability, and superior corrosion resistance. Noastre 6061 aluminum round bars are available in T4, T6, T651 and T6511 tempers, produced per ASTM B211, GB/T 3191, ÎN 755 and JIS H4040 standards, with diameters from 3 mm la 500 mm and custom lengths.
Compoziție chimică (%), ASTM B211 / GB/T 3190
Al (Aluminiu): 95.8 – 98.6 (balance)
Mg (Magneziu): 0.8 – 1.2
Si (Siliciu): 0.4 – 0.8
Cu (Cupru): 0.15 – 0.40
Cr (Crom): 0.04 – 0.35
Fe (Iron): 0.70 max
Zn (Zinc): 0.25 max
Mn (Mangan): 0.15 max
De (Titanium): 0.15 max
Others Each: 0.05 max, Others Total: 0.15 max
Proprietăți mecanice (Typical Values, Bar)
Temper T4 (Solution Heat Treated & Naturally Aged): Rezistență la tracțiune 180-240 MPa, Puterea de curgere 110-170 MPa, Elongaţie 14-18%
Temper T6 (Solution Treated & Artificially Aged): Rezistență la tracțiune 290-310 MPa, Puterea de curgere 240-290 MPa, Elongaţie 8-12%
Temper T651 (T6 + Stress Relieved): Rezistență la tracțiune 290-310 MPa, Puterea de curgere 240-290 MPa, Elongaţie 8-12%
Temper T6511 (T6 + Stress Relieved, Extruded): Rezistență la tracțiune 290-310 MPa, Puterea de curgere 240-290 MPa, Elongaţie 8-12%
Duritate: 95 HB (T6)
Shear Strength: 205 MPa (T6)
Fatigue Strength: 96 MPa (T6, at 5×10⁸ cycles)
Physical Properties
Densitate: 2.70 g/cm³ (0.0975 lb/in³)
Melting Point: 582-652°C (1080-1205°F)
Thermal Conductivity: 167 W/(m·K) at 25°C (T6)
Electrical Conductivity: 43% IACS (T6)
Electrical Resistivity: 4.0 × 10⁻⁸ Ω·m
Thermal Expansion Coefficient: 23.6 × 10⁻⁶/K (20-100°C)
Modulus of Elasticity: 68.9 GPa (10,000 ksi)
Poisson Ratio: 0.33
Specificații
Standards: ASTM B211 (rolled/drawn), ASTM B221 (extruded), GB/T 3191, ÎN 755-2 / 755-3, JIS H4040, QQ-A-225/8
Diametru: 3 mm – 500 mm (0.12″ – 19.7″)
Lungime: 1 m – 12 m (custom cutting available)
Temperament: O, T4, T6, T651, T6511
Tip: Extruded bar, rolled bar, drawn bar, precision ground bar
Surface Finish: Mill finish, Luminos, Drawn, Precision ground (h7-h9), Anodized
Toleranţă: Diametru: ±0.1mm (drawn) to ±1.0mm (extruded), Straightness: ≤1mm/m
Special: Precision ground bars with h7/h8/h9 tolerance for machining centers
Key Features & Avantaje
- Excellent machinability – ideal for CNC turning, milling, and drilling
- Medium-to-high strength – reliable for structural and load-bearing parts
- Good corrosion resistance – suitable for indoor and outdoor applications
- Excellent weldability – fully weldable with 4043 sau 5356 filler
- Heat treatable – T6 temper provides maximum mechanical properties
- Good dimensional stability – stress-relieved tempers available
- Consistent roundness and straightness – tight tolerances
- Lightweight – reduces component weight in machinery and transport
- Good anodizing response – attractive protective finishes
- Available in precision ground condition – ready for high-precision parts
Aplicații
- Machinery – arbori, spindles, role, ace, gears, valve stems
- Automobile – drive shafts, suspension parts, elemente de fixare, spacers
- Elemente de fixare – bolts, screws, studs, rivets, nuts
- Constructii – structural members, paranteze, anchors, fittings
- Aerospațial – non-critical structural parts, paranteze, fittings
- Marin – propeller shafts, fittings, hardware
- Electronică – heat sink rods, antenna elements, support rods
- Tooling – mold components, jigs, corpuri de fixare, mandrels
- Sports equipment – archery components, climbing gear, poles
- General engineering – bushings, standoffs, dowels, custom machined parts
Quality Control & Testing
Every batch of our 6061 aluminum round bars undergoes strict quality control:
Chemical Analysis: Spectrometer verification of Mg, Si, Cu, Cr content
Mechanical Testing: Tensile test, yield strength test, elongation test, hardness test (per temper)
Heat Treatment Verification: Hardness and conductivity testing to verify T6 treatment
Dimensional Inspection: Diametru, roundness, straightness, and length checks
Surface Inspection: Visual inspection for scratches, pits, laps, and die marks
Ultrasonic Testing: UT inspection for internal soundness (available on request)
Documentation: Mill Test Certificate (MTC), material traceability, conformity certificate
Ambalare & Transport
Ambalare: Standard export packaging – bars bundled with steel straps or polypropylene straps, protective paper or film wrapping, wooden pallets or crates for heavy bundles; individual protective tubes for precision ground bars
Marking: Aliaj, temperament, dimensiune, heat number, standard, manufacturer logo
Trade Terms: Fob, CIF, CFR, EXW, DDP
Plată: T/T (30% deposit, 70% before shipment), L/C at sight, Western Union, PayPal (sample orders)
Perioada de graţie: Standard sizes in stock – 3-7 zile; Custom sizes – 15-30 zile
MOQ: 300 kg for standard sizes; custom orders negotiable
Loading Port: Qingdao, Shanghai, Tianjin, Ningbo, or as requested
De ce să ne alegeți
With over 15 years of experience in aluminum manufacturing and export, we are a trusted supplier of 6061 aluminum round bars to machinery manufacturers, fastener producers, and automotive companies in more than 50 țări. Our factory is equipped with modern extrusion, drawing, heat treatment, and precision grinding lines, ensuring consistent quality and tight dimensional accuracy. We maintain large inventory of standard sizes and tempers for immediate delivery, and our experienced team can provide technical consultation and customized solutions for your specific applications. Contact us today for a competitive quote!
